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demux: disable stream cache if no tracks are selected

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Slightly helps with timeline stuff, like EDL. There is no need to keep
network (or even just disk I/O) busy for all segments at the same time,
because 1. the data won't be needed any time soon, and 2. will probably
be discarded anyway if the stream is seeked when segment is resumed.

Partially fixes #2692.
This commit is contained in:
wm4 2016-01-18 18:34:44 +01:00
parent 5986861c9c
commit 46bcdb7039
2 changed files with 12 additions and 1 deletions
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8
demux/demux.c
View File

@ -558,11 +558,18 @@ static void execute_trackswitch(struct demux_internal *in)
{
in->tracks_switched = false;
bool any_selected = false;
for (int n = 0; n < in->num_streams; n++)
any_selected |= in->streams[n]->ds->selected;
pthread_mutex_unlock(&in->lock);
if (in->d_thread->desc->control)
in->d_thread->desc->control(in->d_thread, DEMUXER_CTRL_SWITCHED_TRACKS, 0);
stream_control(in->d_thread->stream, STREAM_CTRL_SET_READAHEAD,
&(int){any_selected});
pthread_mutex_lock(&in->lock);
if (in->start_refresh_seek)
@ -1077,6 +1084,7 @@ static struct demuxer *open_given_type(struct mpv_global *global,
demux_init_cache(demuxer);
demux_changed(in->d_thread, DEMUX_EVENT_ALL);
demux_update(demuxer);
stream_control(demuxer->stream, STREAM_CTRL_SET_READAHEAD, &(int){false});
return demuxer;
}

5
player/loadfile.c
View File

@ -312,7 +312,10 @@ bool timeline_switch_to_time(struct MPContext *mpctx, double pts)
if (mpctx->demuxer) {
demux_stop_thread(mpctx->demuxer);
demux_flush(mpctx->demuxer);
for (int i = 0; i < demux_get_num_stream(mpctx->demuxer); i++) {
struct sh_stream *sh = demux_get_stream(mpctx->demuxer, i);
demuxer_select_track(mpctx->demuxer, sh, false);
}
}
mpctx->demuxer = n->source;